So how come different settings exist in the market? The reason is that the theoretic value of white is never seen in reality. If you look at a white piece of paper for example, it will be colored by the light source that shines on it. In other words it will look different when you look at it under sunlight conditions, than under artificial light in your office. The same goes for displays. However, the cool thing is that we can often choose the white point of the display.
Tampering with the white point setting will consequently impact and define the mood of the image. Note that for convenience we will be talking about displays in this article, but the same goes for just about any visualization device, including projectors and direct view LED tiles.
If you have ever looked more closely to display settings, you will probably have noticed that the most commonly used white points are K and K. But why is the actual temperature unit used for this? In the late s, scientists discovered that black objects radiate different colors if they are heated to high temperatures. German physicist and Nobel Prize winner Max Planck pictured , described a hypothetical ideal black body object that reflects absolutely no light, but radiates different wavelengths of light with increasing temperature.
Think of it as looking to a gas burner: the hottest center spot glows blue, while the outer edge lights up red with yellow and orange in between. So how does this connect to the settings of your display I hear you say?
As said, absolute white is just a theory and never seen in reality. A display works with a light source, which has a slight native hue to it. However, advanced software can change this hue, and match it to different temperatures on the Kelvin scale. If you use your screen only for watching movies or for common office work, then you will probably never need to change the white point setting.
As said, your eyes will automatically adapt to the setting of your display. The default color temperature of the sRGB standard Red Green Blue color space, commonly used for computer monitors, corresponds to K by the way.
However, the white point setting is important if you are a professional designer or creator. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
This topic has 12 replies, 3 voices, and was last updated 1 year, 11 months ago by Jacob Pritchard. Viewing 13 posts - 1 through 13 of 13 total. Jacob Pritchard Participant. It seems like my options are to Leave as is. The whitepoint on my side by side monitors will be different, but perhaps this is not critical? Set the whitepoint to when calibrating under the calibration tab. Would love any insight anyone might have on this. Vincent Participant.
Thank you for the response! Does my option 2 Setting to so it will match Eizo , seem like a bad idea? First of all, verify this: user error while measuring, for example setting a wrong spectral correction for their colorimeter, or not choosing one. When you are sure that it is ok, then you can choose whatever whitepoint you want.
We do not know which colorimeter you have. I assume that is an i1d3 because of the options. Thanks for helping this newbie iron things out! Hi All, Finally getting a chance to look at this more in depth. Attachments: You must be logged in to view attached files. Aha, I do think I understand.
Thanks for the detailed explanation and drawing! Again, thanks for the nuanced feedback! First, use the hardware device and software to adjust the RGB guns to the desired white point often called color temperature , although this is a slightly different concept and black point if available on your display system. Next, profile the calibrated CRT. Color-savvy programs, such as Photoshop, then use the profile to display accurate color. LCD displays often only have brightness controls, although some also have contrast settings, too.
If the adjustment differs substantially from the native color temperature, this can cause reduced color gamut and banding. For that reason, when profiling an LCD, it is best to adjust only the brightness control and any contrast control, then let the profiling device set the desired white point through the display profile. This will save time and improve precision when calibrating and profiling monitors. When shopping for a new monitor, its best to choose a DDC-compliant display if possible.
Desired white points range from K yellow-red to K bluer. The gamma correction may vary from 1. Adjust these settings based on viewing conditions. If comparing the monitor with proofs in a viewing booth, adjust to the best match. The correct luminance also depends on ambient light conditions.
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